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Groundwater levels for the Nation

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USGS 404212073330501 N 9333. 1

Nassau County, New York
Latitude  40°42'12", Longitude  73°33'05" NAD27
Land-surface elevation 55.0 feet above NGVD29
The depth of the well is 50 feet below land surface.
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Reselect period
Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1981-03-0414:30 UTCm62610 41.25NGVD291OUSGSSA
1981-03-0414:30 UTCm62611 40.08NAVD881OUSGSSA
1981-03-0414:30 UTCm7201913.75  1OUSGSSA
1981-06-0918:58 UTCm62610 43.43NGVD291OUSGSSA
1981-06-0918:58 UTCm62611 42.26NAVD881OUSGSSA
1981-06-0918:58 UTCm7201911.57  1OUSGSSA
1981-09-1015:08 UTCm62610 43.25NGVD291OUSGSSA
1981-09-1015:08 UTCm62611 42.08NAVD881OUSGSSA
1981-09-1015:08 UTCm7201911.75  1OUSGSSA
1981-12-2916:37 UTCm62610 41.11NGVD291OUSGSSA
1981-12-2916:37 UTCm62611 39.94NAVD881OUSGSSA
1981-12-2916:37 UTCm7201913.89  1OUSGSSA
1982-03-1814:25 UTCm62610 42.05NGVD291OUSGSSA
1982-03-1814:25 UTCm62611 40.88NAVD881OUSGSSA
1982-03-1814:25 UTCm7201912.95  1OUSGSSA
1982-06-3015:44 UTCm62610 42.49NGVD291OUSGSSA
1982-06-3015:44 UTCm62611 41.32NAVD881OUSGSSA
1982-06-3015:44 UTCm7201912.51  1OUSGSSA
1982-09-1018:32 UTCm62610 43.32NGVD291OUSGSSA
1982-09-1018:32 UTCm62611 42.15NAVD881OUSGSSA
1982-09-1018:32 UTCm7201911.68  1OUSGSSA
1982-12-1315:02 UTCm62610 42.67NGVD291OUSGSSA
1982-12-1315:02 UTCm62611 41.50NAVD881OUSGSSA
1982-12-1315:02 UTCm7201912.33  1OUSGSSA
1983-04-0615:00 UTCm62610 42.69NGVD291OUSGSSA
1983-04-0615:00 UTCm62611 41.52NAVD881OUSGSSA
1983-04-0615:00 UTCm7201912.31  1OUSGSSA
1988-08-1115:02 UTCm62610 38.40NGVD291OUSGSSA
1988-08-1115:02 UTCm62611 37.23NAVD881OUSGSSA
1988-08-1115:02 UTCm7201916.60  1OUSGSSA
1990-05-08 D62610 43.31NGVD291OUSGSSA
1990-05-08 D62611 42.14NAVD881OUSGSSA
1990-05-08 D7201911.69  1OUSGSSA
1990-06-20 D62610 44.31NGVD291OUSGSSA
1990-06-20 D62611 43.14NAVD881OUSGSSA
1990-06-20 D7201910.69  1OUSGSSA
1990-08-17 D62610 42.51NGVD291OUSGSSA
1990-08-17 D62611 41.34NAVD881OUSGSSA
1990-08-17 D7201912.49  1OUSGSSA
1990-10-30 D62610 44.28NGVD291OUSGSSA
1990-10-30 D62611 43.11NAVD881OUSGSSA
1990-10-30 D7201910.72  1OUSGSSA
1991-06-2513:30 UTCm62610 42.38NGVD291OUSGSSA
1991-06-2513:30 UTCm62611 41.21NAVD881OUSGSSA
1991-06-2513:30 UTCm7201912.62  1OUSGSSA
1991-10-2117:10 UTCm62610 40.69NGVD291OUSGSSA
1991-10-2117:10 UTCm62611 39.52NAVD881OUSGSSA
1991-10-2117:10 UTCm7201914.31  1OUSGSSA
1992-03-1616:00 UTCm62610 39.72NGVD291OUSGSSA
1992-03-1616:00 UTCm62611 38.55NAVD881OUSGSSA
1992-03-1616:00 UTCm7201915.28  1OUSGSSA
1992-06-3019:00 UTCm62610 39.31NGVD291OUSGSSA
1992-06-3019:00 UTCm62611 38.14NAVD881OUSGSSA
1992-06-3019:00 UTCm7201915.69  1OUSGSSA
1993-03-2320:30 UTCm62610 41.10NGVD291OUSGSSA
1993-03-2320:30 UTCm62611 39.93NAVD881OUSGSSA
1993-03-2320:30 UTCm7201913.90  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementOObserved.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.